Accuracy: ±15 seconds per month, Photovoltaic: 6 months, Water resistance: 5 ATM Glass: Sapphire glass, Case: Stainless steel, Band: Calf Limited edition of 1,200 pieces, with replacement band (Tochigi leather) Details: This thin pair combines elegant warm gold with deep blue. A beautiful shiny blue calf leather band adds a touch of elegance. A beautiful shiny blue calf leather band adds a touch of sophistication, while a high-quality brown replacement band is included. It is easy to replace and you can change your image according to your mood and fashion of the day. The color ring of both bands is simple and easy to match with fashion.